How to change the source of a dll?

Hi,

I have a website in my SourceSafe Server. A dll is referenced to this project. Now, I need to make some changes in the dll.

How should I go about it? Should I make a separate copy of the dll source code (It is available in my local hard drive), make the changes to this code and then make my project refer to this new dll?

Is there any other way to find out the source code / location of the dll referenced to my project?

Pls help - Thanks in advance

Sangeetha
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